Development of a energy-producing, high-rate wastewater treatment system, it is decreasing of production of greenhouse effect gas and excess sludge

开发能源高效的废水处理系统，减少温室效应气体和剩余污泥的产生

• 批准号: 13555152
• 负责人: YAMAGUCHI Takashi
• 金额: $ 8.58万
• 依托单位: Kure National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13555152/
• 关键词: Domestic wastewater; anaerobic digestion; methane fermentation; methane-oxidizing bacteria; sulfur-oxidizing bacteria; sulfate-reducing bacteria; low strength wastewater; nitrogen removal

We have proposed sewage treatment system which consists of an UASB reactor as an anaerobic pre-treatment unit and an aerobic post-treatment unit. The aerobic unit is composed of a combination of a tricking filter reactor and a fluidized bed reactor in order to polish up the UASB effluent. The feasibility test feeding raw sewage for over 250 days was carried out with 7.18 m^3 pilot plant system at a municipal sewage treatment plant. Circulation of a part of the tricking filter effluent stream to the UASB as supplying a sulfate source improved the final effluent quality of the system. Influent unfiltered BOD of 303 mg/L decreased to 150 mg/L in UASB effluent and subsequently to 13 mg/L in the aerobic unit effluent for 12 hours in the HRT of whole system. Vial-activity batch tests suggested that the main electron flow for BOD oxidation in the UASB sludge shifted completely from methane production to sulfate reduction after 90 days operation.

我们提出了污水处理系统，该系统由UASB反应器作为厌氧预处理单元和好氧后处理单元组成。好氧单元由滴滤反应器和流化床反应器组合而成，以改善UASB出水。在某城市污水处理厂7.18 m^3中试系统上进行了250 d以上的原水进水可行性试验。将部分滴滤出水循环至UASB作为硫酸盐源，改善了系统的最终出水水质。在整个系统水力停留时间为12 h的条件下，进水BOD由303 mg/L降到150 mg/L，好氧单元出水BOD由13 mg/L降到150 mg/L。小瓶活性批式试验表明，在UASB污泥BOD氧化的主要电子流完全从甲烷生产转移到硫酸盐还原后90天的运行。

项目成果

H.Sumino, T.Yamaguchi, A.Nagano, S.Simozaki, N.Araki, S.Yamazaki, H.Harada: "TREATMENT OF LOW STRENGTH WASTEWATER BY ACTIVATED SULFUR-REDOX ACTION AT LOW TEMPERATURES"21^<st> Century's COE The 1st International Symposium Green Energy Revolution. 124 (2003

H.Sumino、T.Yamaguchi、A.Nagano、S.Simozaki、N.Araki、S.Yamazaki、H.Harada：“通过低温下活性硫氧化还原作用处理低浓度废水”21^<st>世纪

Y.Bungo, T.Yamaguchi, A.Nagano, S.Yamazaki, N.Araki, H.Harada: "Low temperature wastewater treatment using by biological sulfur cycle"56^<th> Chugoku regional conference of Japan society of civil engineering. 617-618 (2004)

Y.Bungo、T.Yamaguchi、A.Nagano、S.Yamazaki、N.Araki、H.Harada：“利用生物硫循环的低温废水处理”日本土木工程学会第 56 次中国地区会议。

文後佳久, 山口隆司, 長野晃弘, 山崎慎一, 荒木信夫, 原田秀樹: "硫黄サイクルを用いた低温排水処理特性"第56回土木学会中国支部研究発表会発表概要集. 617-618 (2004)

Yoshihisa Bungo、Takashi Yamaguchi、Akihiro Nagano、Shinichi Yamazaki、Nobuo Araki、Hideki Harada：《利用硫循环处理低温废水的特性》第56届日本土木工程学会中国分会研究会议摘要集617-618。 2004）

H.Sumino, T.Yamaguchi, A.Nagano, S.Simozaki, N.Araki, S.Yamazaki, H.Harada: "TREATMENT OF LOW STRENGTH WASTE WATER BY ACTIVATED SULFUR-REDOX ACTION AT LOW TEMPERATURES(低温条件下において硫黄酸化還元反応を活性化させた低濃度排水処理)"21st Century's COE The 1st International Symposium Gre

H.Sumino、T.Yamaguchi、A.Nagano、S.Simozaki、N.Araki、S.Yamazaki、H.Harada：“通过低温下活性硫氧化还原作用处理低浓度废水 21 世纪的 COE 第一届国际格雷研讨会

Y.Bungo, D.Tanigawa, T.Yamaguchi, S.Yamazaki, N.Araki, H.Harada, A.Nagano: "Low temperature wastewater treatment using by biological sulfur Redox process"40^<th> Environmental Engineering research forum. 76-78 (2003)

Y.Bungo、D.Tanikawa、T.Yamaguchi、S.Yamazaki、N.Araki、H.Harada、A.Nagano：“利用生物硫氧化还原工艺处理低温废水”第40届环境工程研究论坛。